Dimethyldichlorosilane , >98.5%(GC) , 75-78-5

Synonym(s):
Dichlorodimethylsilane;Dimethyldichlorosilane;DMDCS;Sylon CT;Silane M2

CAS NO.：75-78-5

Empirical Formula: C2H6Cl2Si

Molecular Weight: 129.06

MDL number: MFCD00000491

EINECS: 200-901-0

Update time: 2022-07-08

PRODUCT Properties

Melting point:	-76 °C
Boiling point:	70 °C(lit.)
Density	1.333 g/mL at 20 °C
vapor pressure	<200 hPa (20 °C)
refractive index	n20/D 1.500
Flash point:	3 °F
storage temp.	Store below +30°C.
solubility	sol chlorinated solvents and ethereal solvents; reacts with protic solvents.
form	liquid
Specific Gravity	1.0637
color	colorless
explosive limit	1.75-48.5%(V)
Water Solubility	reacts
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	8: reacts rapidly with moisture, water, protic solvents
BRN	605287
Stability:	Stable. Reacts violently with water and alcohols. Highly flammable. Incompatible with strong oxidizing agents, water, alcohols, caustics, ammonia.

Description and Uses

Dichlorodimethylsilane is used to prepare a resin bound siloxane with tertiary alcohols and it is also used as a reagent for synthesis of optically active ansa-mettallocene polymerization catalysts. It acts as a precursor to silicone and polysilane compounds. It is also used in the glass coating to protect it from micro particles. It is involved in the preparation of resin bound siloxane with reactivity towards tertiary alcohols.

Safety

Symbol(GHS)	GHS02,GHS05,GHS07,GHS08
Signal word	Danger
Hazard statements	H225-H304-H314-H336-H361d-H373-H412
Precautionary statements	P210-P280-P301+P330+P331-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes	Xn,Xi,F,N,C
Risk Statements	20-59-36/37/38-11-67-65-63-48/20-38-20/21-50/53-37-35-20/22-14-34
Safety Statements	60-61-62-36/37-59-45-36/37/39-26-16-7/9-2
RIDADR	UN 2924 3/PG 2
WGK Germany	3
RTECS	VV3150000
F	3-10-19-21
Autoignition Temperature	425 °C
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29310095
Toxicity	LD50 orally in Rabbit: 6056 mg/kg